This TS provides standardised security mechanisms in conjunction with the SIM Application Toolkit for the interface between a 3G or GSM PLMN Entity and a UICC. The security mechanisms which are specified are independent of applications.
This TS describes the functional requirements of the security mechanisms with the implementation detail of these mechanisms being described in the stage 2 specification (TS 23.048
Within the scope of this TS, the UICC refers here to a ICC which support at least one application in order to access a cellular network. The ICC is considered as a platform, which is either based on TS 31.101
, here called "3G platform", or TS 51.011
, here called "2G platform".